Characterization of Titanium Dioxide (TiO2) Doping on Reduced Graphene Oxide (rGO) for Dye Sensitized Solar Cell (DSSC) Application

This research is to fabricate dye sensitized solar cell with introduction of graphene layers and examine the structural, optical, electrical properties and chemical bonding of different doping ratio of TiO2-rGO for Dye Sensitized Solar Cell (DSSC) application. Titanium Dioxide solution was prepared...

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Main Author:	Afiqah, Binti Baharin
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://ir.unimas.my/id/eprint/30210/1/Afiqah%20Binti%20Baharin%20ft.pdf
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id	my-unimas-ir.30210
record_format	uketd_dc
spelling	my-unimas-ir.302102023-03-06T07:57:11Z Characterization of Titanium Dioxide (TiO2) Doping on Reduced Graphene Oxide (rGO) for Dye Sensitized Solar Cell (DSSC) Application 2020-01-30 Afiqah, Binti Baharin TK Electrical engineering. Electronics Nuclear engineering This research is to fabricate dye sensitized solar cell with introduction of graphene layers and examine the structural, optical, electrical properties and chemical bonding of different doping ratio of TiO2-rGO for Dye Sensitized Solar Cell (DSSC) application. Titanium Dioxide solution was prepared using precipitation peptization method and reduced graphene oxide solution was prepared by using chemical reduction method. The effects of different doping ratio of TiO2-rGO were studied and fabricated for DSSC application. The performance of the thin film was characterized by Scanning Electron Microscope (SEM), X-ray Diffraction (XRD) and Atomic Force Microscopy (AFM) for structural properties. Meanwhile, Ultraviolet-visible spectroscopy (UV-Vis) and Fourier Transform Infrared spectroscopy (FTIR) for optical properties, I-V measurement by using Keithley sourcemeter to analyse the electrical properties of the thin film while X-ray Photoelectron Spectroscopy (XPS) measurement to analyse the chemical bonding between TiO2 and rGO. It is observed that a low content of rGO (0.1 wt%) was successfully incorporated with TiO2 and form TiO-C bond, which enhance the power conversion efficiency up to 1.21% compared to pure TiO2 (0.19%). This was also supported by UV-Vis spectra with highest absorption and lowest band gap energy of 2.87 eV. However, 0.5 wt% TiO2-rGO resulted in poor photoconversion efficiency performance due to the over photocatalytic reaction occurred leaving extra holes on the counter electrode. Therefore, rGO is potentially to be coupled with TiO2 and applied as photoanode in DSSC application to lower the recombination loss. Universiti Malaysia Sarawak (UNIMAS) 2020-01 Thesis http://ir.unimas.my/id/eprint/30210/ http://ir.unimas.my/id/eprint/30210/1/Afiqah%20Binti%20Baharin%20ft.pdf text en validuser masters Universiti Malaysia Sarawak (UNIMAS) Faculty of Engineering
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Afiqah, Binti Baharin Characterization of Titanium Dioxide (TiO2) Doping on Reduced Graphene Oxide (rGO) for Dye Sensitized Solar Cell (DSSC) Application
description	This research is to fabricate dye sensitized solar cell with introduction of graphene layers and examine the structural, optical, electrical properties and chemical bonding of different doping ratio of TiO2-rGO for Dye Sensitized Solar Cell (DSSC) application. Titanium Dioxide solution was prepared using precipitation peptization method and reduced graphene oxide solution was prepared by using chemical reduction method. The effects of different doping ratio of TiO2-rGO were studied and fabricated for DSSC application. The performance of the thin film was characterized by Scanning Electron Microscope (SEM), X-ray Diffraction (XRD) and Atomic Force Microscopy (AFM) for structural properties. Meanwhile, Ultraviolet-visible spectroscopy (UV-Vis) and Fourier Transform Infrared spectroscopy (FTIR) for optical properties, I-V measurement by using Keithley sourcemeter to analyse the electrical properties of the thin film while X-ray Photoelectron Spectroscopy (XPS) measurement to analyse the chemical bonding between TiO2 and rGO. It is observed that a low content of rGO (0.1 wt%) was successfully incorporated with TiO2 and form TiO-C bond, which enhance the power conversion efficiency up to 1.21% compared to pure TiO2 (0.19%). This was also supported by UV-Vis spectra with highest absorption and lowest band gap energy of 2.87 eV. However, 0.5 wt% TiO2-rGO resulted in poor photoconversion efficiency performance due to the over photocatalytic reaction occurred leaving extra holes on the counter electrode. Therefore, rGO is potentially to be coupled with TiO2 and applied as photoanode in DSSC application to lower the recombination loss.
format	Thesis
qualification_level	Master's degree
author	Afiqah, Binti Baharin
author_facet	Afiqah, Binti Baharin
author_sort	Afiqah, Binti Baharin
title	Characterization of Titanium Dioxide (TiO2) Doping on Reduced Graphene Oxide (rGO) for Dye Sensitized Solar Cell (DSSC) Application
title_short	Characterization of Titanium Dioxide (TiO2) Doping on Reduced Graphene Oxide (rGO) for Dye Sensitized Solar Cell (DSSC) Application
title_full	Characterization of Titanium Dioxide (TiO2) Doping on Reduced Graphene Oxide (rGO) for Dye Sensitized Solar Cell (DSSC) Application
title_fullStr	Characterization of Titanium Dioxide (TiO2) Doping on Reduced Graphene Oxide (rGO) for Dye Sensitized Solar Cell (DSSC) Application
title_full_unstemmed	Characterization of Titanium Dioxide (TiO2) Doping on Reduced Graphene Oxide (rGO) for Dye Sensitized Solar Cell (DSSC) Application
title_sort	characterization of titanium dioxide (tio2) doping on reduced graphene oxide (rgo) for dye sensitized solar cell (dssc) application
granting_institution	Universiti Malaysia Sarawak (UNIMAS)
granting_department	Faculty of Engineering
publishDate	2020
url	http://ir.unimas.my/id/eprint/30210/1/Afiqah%20Binti%20Baharin%20ft.pdf
_version_	1783728378364297216

Characterization of Titanium Dioxide (TiO2) Doping on Reduced Graphene Oxide (rGO) for Dye Sensitized Solar Cell (DSSC) Application

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